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Finding the Fourth Proportional to 486,557.60, 671,401.84 and 333,726.36

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Solution

The fourth proportional to 486,557.60, 671,401.84 and 333,726.36 is: 460,509.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,557.60 : 671,401.84 = 333,726.36 : x
  2. Step 2: Convert to fraction form
    486,557.60/671,401.84 = 333,726.36/x
  3. Step 3: Cross multiply
    486,557.60x = 671,401.84 × 333,726.36
  4. Step 4: Simplify right side
    486,557.60x = 224,064,492,160.50
  5. Step 5: Solve for x
    x = 224,064,492,160.50/486,557.60
  6. Step 6: Final answer
    x = 460,509.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.